<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@ page import="java.util.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
	@SuppressWarnings("unchecked")
	HashMap<String,String> map=(HashMap<String,String>)application.getAttribute("USERS");
	String name=request.getParameter("username");
	String pwd=request.getParameter("pwd");
	map.put(name, pwd);
%>

欢迎您！<%=name %>
</body>
</html>